2245116256812 has 240 divisors, whose sum is σ = 7041971768832. Its totient is φ = 614642152320.

The previous prime is 2245116256793. The next prime is 2245116256871. The reversal of 2245116256812 is 2186526115422.

2245116256812 is a `hidden beast` number, since 2 + 2 + 4 + 5 + 1 + 1 + 625 + 6 + 8 + 12 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1662103 + ... + 2693105.

Almost surely, 2^{2245116256812} is an apocalyptic number.

2245116256812 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2245116256812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3520985884416).

2245116256812 is an abundant number, since it is smaller than the sum of its proper divisors (4796855512020).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2245116256812 is a wasteful number, since it uses less digits than its factorization.

2245116256812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1031090 (or 1031079 counting only the distinct ones).

The product of its digits is 460800, while the sum is 45.

The spelling of 2245116256812 in words is "two trillion, two hundred forty-five billion, one hundred sixteen million, two hundred fifty-six thousand, eight hundred twelve".